Use a solar blanket

Can you not put the coil outside the barrel

I have a 13,500 above ground pool , i want to try this

So your saying copper would eventually leak

Wow that is very scientific. I love it. We probably wont be able to do it as almost everybody here dries washing outdoors and even a small bonfire makes laundry smell but if you have the space outdoors its a great idea.

Bout 5 44" inner tube gonna try something

This is along the lines of the Pool Tree system, except they use bungee instead of rope. Honestly, covering your pool in the winter in the north is a crapshoot. The best setup is to have a pool not surrounded by any trees. No pollen, leaves, sticks to deal with.

How many meters of copper pipe did you use

Love this idea. I will be using this technique with some minor adjustments to cover my 28’ round pool this year!

This product was very easy to set upCame with everything in descriptionShipped very quickly an all around perfect pool heater purchase A+++ definitely someone to buy from

Have a 15’ x 42” easy set and just one works great even though 3 are recommended. 76 degrees to 86 in 3 days and maintains. I’m in nw Ohio and I’m happy with my $20

It's no joke! If your pool pump has a timer make sure to disable it or at least reset it before it turns the pump off.

We used your ideas and a couple other people's and man wow. We have a 17,000 gallon pool and we are getting one degree per hour. Thank u so much

We tried something similar, you still get water pockets In between the ropes no matter how tight it is the weight of the water over powers the ropes .

I feel like a 2x4 would work

Nice. I just chuck the floating beds in the pool and those stop the cover from sinking.

Looks great. What power is your pump? How many gallons per hour?

It seems that most DIY heat transfer inventors make the same erroneous assumption - that low exit temperatures mean the water is moving too fast to pick up heat. That is incorrect. The formula for heat transfer rate is: U * A * (T hot - T cold) - where U is the system heat transfer coefficient, A is the Area of heat exchange, and the temperatures are the hot side and cold side. As a general rule the HIGHER flow rate maintains the LARGEST temperature difference between the hot side and cold side, and the MORE heat you transfer in total. As someone else commented you also want high flow rates to maintain turbulent flow. The fact that the total heat transferred (flow X temperature rise) is quite similar in each case here just means that cold side flow is not the controlling factor in this system. I would guess the limiting factor is the stainless tubing which has rather poor heat conductivity, only about 6% of copper. Other wise neat video series. Seeing the heat output of one of these barrel heaters (about 1.5 kw) is most helpful for anyone considering building one.

Would be easier to wrap it around the outside of the barrel. Your going to get the same amount of heat anyhow

why stainless steel and not copper?

Outstanding Thank you

If I wanted a hot tub I would have bought one

Question bro you think the tubing 316-1/2-.020 will work ? The .028 is sold out

Won’t work….water WILL pool between the ropes and put heavy stress on the bungees clipped to the rail.

I've been using your method for 2 years. It works. I actually added a heated fountain to flow into my pool rather than placing the hose directly on the bottom of the pool. It's safer and very effective. The water flows very warm water not steaming hot water. I did not attached this via my main water filter system; I decided to use an extra A-frame ladder as part of a decorative water feature. There was no need for me to drill holes into my pool or disurpt my orginal filter system. The burn barrel has 2 discreet lines from the fountain ladder to the burn barrel with an awesome strong submersible pool pump hidden at the bottom of the pool behind the ladder. Thanks again for your idea.

Great video and amazing way to break down the data for all to understand. Also the material list you provide is phenomenal.

Great video. love the assembly details. QUESTION: I can only find 50 1/2" SS coils. Will the shorter length compromise the efficiency much? If so how would you suggest joining 2 50ft coils?

Will the wall thickness make much difference? Such as .035 instead of .028

Thanks for showing this barrel heater. I have a HUGE pond I need heat for. I have a playlist called greenhouses that has a red shirt guy doing solar water heater and he did series of straight up pipes w t connections for better flow rate, manifold he said. Wondering if that could be made inside barrel for 10-12 straight up pipes...

Amazing Maaann thanks:))

Nice job. Great instructions

To Jack on the Farm: what would be the thermal gain become by using 1/2” or 1/4” pipes in the barrel rather than the 1 inch pipe? Wouldn’t you have to increase the number of pipes in the barrel if you decrease the diameter of the pipes in the barrel? Would the length of decreased pipes in the barrel also become decreased?

If you’re only hearing during fire why wouldn’t you divert all the water through coil by fire?

Your diverter is a great design. I’ll definitely be using this one. Great video.

Good job

What happens if ball comes loose

Holy cow Batman, this gives me an amazing idea for an outdoor tub... 🥰

I was planning on ordering the tubing coil .. but what a surprise, it cost almost 300 dollars Twice as much when you uploaded the video 🥲

can you tell me what brand and model of swimming pool you have?

So there’s a huge variable you’re missing here though and I’m not trying to be a dick but ambient temperature it will play a huge role in heat transfer of the water and I understand that the water and ambient temperature are going to reach equilibrium but ambient temperature isn’t constant so it’s going to either add or subtract temperature from the water

This was kick ass great job

Excellent video. Thank you.

Do you think adding a small 12v pump to the heating system would hest the pool/tub any quicker or would the flow be too fast to heat the water enough?

Thank you

Can u put a valve on the output and slow it down to heat it more

Thank you so much this is a brilliant way I'm really looking forward to doing this 😎

Great idea my only question is why stainless and not copper ?

Just put a pump on the cover along with a leaf net

You should make these and name it the Jeff Foxworthy pool heater

will the irrigation hose work for 2700g pool?